<template>
    <el-dialog
      width="500px"
      title="员工导入"
      :visible="showExcelDialog"
      @close="$emit('update:showExcelDialog', false)"
    >
      <el-row type="flex" justify="center">
        <div class="upload-excel">
          <input
            ref="excel-upload-input"
            class="excel-upload-input"
            type="file"
            accept=".xlsx, .xls"
            @change="uploadEmployeeData"
          >
          <div class="drop">
            <i class="el-icon-upload" />
            <el-button type="text" @click="downloadTemplate">下载导入模板</el-button>
            <span>将文件拖到此处或
              <el-button type="text" @click="uploadExcel">点击上传</el-button>
            </span>
          </div>
        </div>
      </el-row>
      <el-row type="flex" justify="end">
        <!-- update:props属性名，值 直接修改 .sync修饰符的属性值 -->
        <el-button size="mini" type="primary" @click="$emit('update:showExcelDialog', false)">取消</el-button>
      </el-row>
    </el-dialog>
  </template>
  <script>
  import { exoprtTemplate , uploadEmplyee }  from '@/api/employee'
  import FileSaver from 'file-saver'
  export default {
    props: {
      showExcelDialog: {
        type: Boolean,
        default: false
      }
    },
    methods: {
        async downloadTemplate() {
            const res = await exoprtTemplate()
            console.log(res);
            FileSaver.saveAs(res, '员工导入模板.xlsx')
            this.$message.success('模板下载成功')
        },
        // 上传
        uploadExcel() {
            this.$refs['excel-upload-input'].click()
        },
        // 向服务器上传文件
        async uploadEmployeeData(event) {
            console.log(event.target.files);
            // 判断文件选择器是否有数据
            if (event.target.files.length > 0) {
                // 获取文件对象
                const file = event.target.files[0]
                // 创建formData对象
                const formData = new FormData()
                // 向formData对象中添加数据
                formData.append('file', file)
                // 发送axios请求
                
                // 处理成功与失败
                try {
                    await uploadEmplyee(formData)
                    // 关闭弹层
                    this.$emit('update:showExcelDialog', false)
                    // 更新员工列表渲染
                    this.$emit('uploadSuccess')
                    this.$message.success('上传成功')
                }
                catch(error) {

                }
                finally {
                    // 清空文件选择器
                    this.$refs['excel-upload-input'].value = ''
                }
            }

           
        }
    }
  }
  </script>
  
  <style scoped lang="scss">
      .upload-excel {
        display: flex;
        justify-content: center;
        margin: 20px;
        width: 360px;
        height: 180px;
        align-items: center;
        color: #697086;
        .excel-upload-input {
          display: none;
          z-index: -9999;
        }
        .btn-upload,
        .drop {
          border: 1px dashed #dcdfe6;
          width: 100%;
          height: 100%;
          text-align: center;
          line-height: 160px;
          border-radius: 8px;
          display: flex;
          flex-direction: column;
          justify-content: center;
        }
        .drop {
          line-height: 40px;
          color: #bbb;
          i {
            font-size: 60px;
            display: block;
            color: #c0c4cc;
          }
        }
      }
  </style>